Product Light source: 16pcs LED bulbs Color temperature: 5500K - 6000K Power supply: 600mAh battery Full charge time: about 4 hours Working time: 5 hours ( high), 9 hours (medium), 12 hours (low) Colour: white black Package Contents: 1 x LED reading lamp 1 x USB charging cable >1 x user manual 1. Y EYE CARE CLIP ON LIGHT - Comes with a SECURE PADDED CLAMP and INFINITELY FLEXIBLE NECK, which allows you to freely adjust the angle between arm and lamp holder and put the clip on the lamp for best view. 2 . RELIABLE LIGHTING WITH CARE - The book lamp has 3 levels of light intensity, which can be adjusted according to your preference by touch. Featuring 16 high-quality LED bulbs that improve visual clarity to reduce eye strain and increase productivity. Use low mode to allow a flat bedside lamp to read without disturbing your partner. 3. Stop wasting money on batteries- Our reading light has a built-in 600mAh rechargeable battery. You can read wirelessly for up to 24 hours. There are 3 power delivery modes to choose from, including universal USB serial ports, power banks, and adapters (excluding). 4. DESIGN \u0026 WIDE CLAMP OPENING- This headboard lamp is designed by our German designers and the sturdy clip can be opened up to 4.5cm. Edelweiss and flexible neck make the lamp look like a white swan. The non-slip rubber pad is tightly designed for use as an elegant desk lamp. 5. Multiple Uses- Perfect for camping, reading for kids, study, on music stand, as car repair lamp, computer lamp, for chores, crafts and hobbies, travel and reading in bed without disturbing your partner. Gives stable and evenly distributed light with no hot spot or flicker.